I've heard it's good to paint in a series - like 2, 4 or 6 paintings of the same/similar subject, same size, same style, etc. so they all go together, and potentially could be bought together as a series. Another reason is that there is something nice about having a series; it looks cohesive, they each complement the whole, and it feels like you had an idea and explored it beyond the initial attempt. I felt that "Two Cups" needed a complimentary piece to go with it, so heres what I did today.
Acrylic on Canvas, 6x6" $100.